Abstract
Nonaqueous phase liquids (NAPLs) such as gasoline and halogenated solvents enter the subsurface after a spill, or from leaking underground storage tanks. NAPLs trapped by capillary forces in subsurface environments pose a long-term threat to drinking water supplies. The main challenge in site remediation lies in dealing with the dissolving NAPL source (Corapcioglu and Baehr 1987). An understanding and quantification of the NAPL dissolution process at pore scale are of utmost importance in estimating the source of existing dissolved compounds and in evaluating the efficiency of in situ remediation of NAPL-contaminated aquifers.
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Abbreviations
- θ :
-
porosity of porous medium
- Ana :
-
interfacial area between the NAPL and the aqueous phase
- ana :
-
specific interfacial area between the NAPL and the aqueous phase
- A r :
-
surface area (two-dimensional) of residual NAPL blob or ganglia
- C:
-
aqueous concentration of NAPL
- CSAT :
-
saturation concentration of NAPL
- k:
-
mass transfer coefficient
- k*:
-
mass transfer rate coefficient
- PNA :
-
total (two-dimensional) interfacial perimeter of residual NAPL
- pN :
-
density of NAPL
- S:
-
degree of saturation of NAPL
- t:
-
time
- Vr :
-
volume of residual NAPL blob or ganglia
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© 1998 Springer-Verlag Berlin Heidelberg
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Corapcioglu, M.Y., Chowdhury, S., Roosevelt, S.E. (1998). Residual Nonaqueous Phase Liquid Dissolution in Micromodels. In: Rubin, H., Narkis, N., Carberry, J. (eds) Soil and Aquifer Pollution. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-03674-7_19
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DOI: https://doi.org/10.1007/978-3-662-03674-7_19
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